The answer to 'how often to clean air duct' is that most experts recommend having your air ducts cleaned every 3-5 years. Regular cleaning helps remove accumulated dust, dirt, and debris that can circulate through your home's air, potentially causing respiratory issues or exacerbating allergies. Homeowners with pets, large families, or those who have recently completed a home renovation may need to clean their ducts more frequently, around every 2-3 years.
Proper air duct cleaning can improve your indoor air quality, extend the lifespan of your HVAC system, and reduce energy costs by allowing it to operate more efficiently. It's best to hire a professional air duct cleaning service to ensure the job is done thoroughly and safely.